Optimized film thicknesses for maximum refractive index sensitivity and figure of merit of a bimetallic film surface plasmon resonance sensorJakub Chylek, Dalibor Ciprian and Petr HlubinaEur. Phys. J. Plus, 139 1 (2024) 11DOI: https://doi.org/10.1140/epjp/s13360-023-04798-1